[Boatanchors] SI units and the rest

WA5CAB at cs.com WA5CAB at cs.com
Tue Nov 16 19:21:30 EST 2010


I'm curious as to why it isn't 1/(3*10^8).  

In a message dated 11/16/2010 11:39:45 AM Central Standard Time, 
w7qho at aol.com writes: 
> The original definition of a METER  was based on a measured standard  
> bar.  The standard was redefined in 1983 as the distance traveled by  
> light in a vacuum during a time interval of 1/299,792,458 of a  
> second,   The standard kilogram is a a cylindrically shaped platinum- 
> iridium slug and is the only SI unit still defined by an artifact  
> rather than a fundamental physical property that can be reproduced in  
> different laboratories.
> 
> Dennis D. W7QHO
> Glendale, CA

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480


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